Is this okay...will the crabs bother my neon tetras or will the neons bother the crabs? Oh, and one more ques. van my crabs get along with my ghost shrimp?
if it's a fiddler crab or a red clawed crab then it will be happier in a tank where it has land. the only fish that are in danger would be bottom dwellers, cories,plecs and such. the crab may not catch them but will stress them out. stressed fish = disease and disease = dead fish.